Finding the Fourth Proportional to 108,135,732.76, 149,224,234.86 and 63,480,987.88
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Solution
The fourth proportional to 108,135,732.76, 149,224,234.86 and 63,480,987.88 is: 87,601,957.31
Step by Step Solution
- Step 1: Write the proportion equation
108,135,732.76 : 149,224,234.86 = 63,480,987.88 : x - Step 2: Convert to fraction form
108,135,732.76/149,224,234.86 = 63,480,987.88/x - Step 3: Cross multiply
108,135,732.76x = 149,224,234.86 × 63,480,987.88 - Step 4: Simplify right side
108,135,732.76x = 9,472,901,844,549,934 - Step 5: Solve for x
x = 9,472,901,844,549,934/108,135,732.76 - Step 6: Final answer
x = 87,601,957.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.